When codifying Jenkins jobs, you have two options: Job DSL + seed job. More native to Jenkins, but requires Groovy scripting. Jenkins Job Builder. A third party solution, but configs are in yaml, so it’s easier to get started.
As you might know, cron captures all the output of executed tasks and mails them to the user under which the tasks are executed. The problem is that often this mail just piles up somewhere in /var/mail directory, without being ever reviewed. It’s not a good practice, akin to sweeping the trash under the carpet.
Continuing on using Jenkins as a dashboard, I’d like to highlight some things that are essential to ensure reliable job execution:
Suppose we want to find only users who have a middle name from this: users: - name: John surname: Johnson - name: Alice surname: Wonderland - name: Bob surname: Rabbit middlename: Bebop Old, verbose way would be: - debug: msg="" loop: "" when: item.middlename is defined This results in “s...
Stages of having forgotten KeePassX master password:
Ansible playbook execution may take quite a while when connection is not configured properly. Here’s a checklist to ensure your Ansible is as fast as possible:
TL;DR: use Gitlab+Netlify. With the push for back to static, I found myself looking for static hosting again. And with some specific requirements: DNS on Cloudflare SSL support for 4th level subdomains (sub.sub.domain.com). Which means SSL termination can’t happen on Cloudflare - their free plan only allows to ...
Email server behind NAT is a pain, but it can be further aggravated if your email server has a dynamic IP address. Which is the case with EC2. Granted, it will only change on stop/start of the instance, but still. Here’s a recipe to deal with it (a kludge, of course):
Ansible playbook execution may take quite a while when connection is not configured properly. Here’s a checklist to ensure your Ansible is as fast as possible:
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
As you might know, cron captures all the output of executed tasks and mails them to the user under which the tasks are executed. The problem is that often this mail just piles up somewhere in /var/mail directory, without being ever reviewed. It’s not a good practice, akin to sweeping the trash under the carpet.
Email server behind NAT is a pain, but it can be further aggravated if your email server has a dynamic IP address. Which is the case with EC2. Granted, it will only change on stop/start of the instance, but still. Here’s a recipe to deal with it (a kludge, of course):
Centos 7 has Exim 4.84 in repos, which has DKIM support built-in. So no need for OpenDKIM anymore. See how is it configured:
When codifying Jenkins jobs, you have two options: Job DSL + seed job. More native to Jenkins, but requires Groovy scripting. Jenkins Job Builder. A third party solution, but configs are in yaml, so it’s easier to get started.
Continuing on using Jenkins as a dashboard, I’d like to highlight some things that are essential to ensure reliable job execution:
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Wayland doesn’t allow applications to change resolution, and there’s no official utility to do that. There’s a third party display-config script, but it stopped working with latest changes in Mutter API. Here’s a short workaround until a better solution comes up:
One can say many bad things about Mac OS, but what they got right for sure is typing diacritics, such as ñ or é. You don’t have to add layouts or switch languages, just use alt+n to get dead tilde and alt-e for dead acute accent.
Today we are going to install Karpenter with ArgoCD.
Environment: AWS EKS, Ingress-Nginx controller installed, and an Ingress resource is configured, passing requests to a backend http service.
Oh, no! Terraform deploys Lambda again!
Today we are going to install Karpenter with ArgoCD.
Let’s say we need to set up HTTP to HTTPS redirection in Traefik ingress.
Environment: AWS EKS, Ingress-Nginx controller installed, and an Ingress resource is configured, passing requests to a backend http service.
Email server behind NAT is a pain, but it can be further aggravated if your email server has a dynamic IP address. Which is the case with EC2. Granted, it will only change on stop/start of the instance, but still. Here’s a recipe to deal with it (a kludge, of course):
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
Email server behind NAT is a pain, but it can be further aggravated if your email server has a dynamic IP address. Which is the case with EC2. Granted, it will only change on stop/start of the instance, but still. Here’s a recipe to deal with it (a kludge, of course):
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
As you might know, cron captures all the output of executed tasks and mails them to the user under which the tasks are executed. The problem is that often this mail just piles up somewhere in /var/mail directory, without being ever reviewed. It’s not a good practice, akin to sweeping the trash under the carpet.
Centos 7 has Exim 4.84 in repos, which has DKIM support built-in. So no need for OpenDKIM anymore. See how is it configured:
Suppose we want to find only users who have a middle name from this: users: - name: John surname: Johnson - name: Alice surname: Wonderland - name: Bob surname: Rabbit middlename: Bebop Old, verbose way would be: - debug: msg="" loop: "" when: item.middlename is defined This results in “s...
Ansible playbook execution may take quite a while when connection is not configured properly. Here’s a checklist to ensure your Ansible is as fast as possible:
Email server behind NAT is a pain, but it can be further aggravated if your email server has a dynamic IP address. Which is the case with EC2. Granted, it will only change on stop/start of the instance, but still. Here’s a recipe to deal with it (a kludge, of course):
Ansible playbook execution may take quite a while when connection is not configured properly. Here’s a checklist to ensure your Ansible is as fast as possible:
Continuing on using Jenkins as a dashboard, I’d like to highlight some things that are essential to ensure reliable job execution:
TL;DR: use Gitlab+Netlify. With the push for back to static, I found myself looking for static hosting again. And with some specific requirements: DNS on Cloudflare SSL support for 4th level subdomains (sub.sub.domain.com). Which means SSL termination can’t happen on Cloudflare - their free plan only allows to ...
Say you need to make a navigation menu bar for a large static (HTML) website. Not the Jekyll/Hugo kind - those are easy to manage. I’m talking about something from the past, a legacy monster.
The dreaded GPU hang error:
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
There’s still a shortage of proper Mysql proxy software. At the moment, there are 2 the most prominent: Mysqlproxy by Oracle and MaxScale by MariaDB. Seeing that there are no RPMs for Mysqlproxy, I decided to try out MaxScale first. Let’s see how it performed.
There’s still a shortage of proper Mysql proxy software. At the moment, there are 2 the most prominent: Mysqlproxy by Oracle and MaxScale by MariaDB. Seeing that there are no RPMs for Mysqlproxy, I decided to try out MaxScale first. Let’s see how it performed.
There’s still a shortage of proper Mysql proxy software. At the moment, there are 2 the most prominent: Mysqlproxy by Oracle and MaxScale by MariaDB. Seeing that there are no RPMs for Mysqlproxy, I decided to try out MaxScale first. Let’s see how it performed.
There’s still a shortage of proper Mysql proxy software. At the moment, there are 2 the most prominent: Mysqlproxy by Oracle and MaxScale by MariaDB. Seeing that there are no RPMs for Mysqlproxy, I decided to try out MaxScale first. Let’s see how it performed.
There’s still a shortage of proper Mysql proxy software. At the moment, there are 2 the most prominent: Mysqlproxy by Oracle and MaxScale by MariaDB. Seeing that there are no RPMs for Mysqlproxy, I decided to try out MaxScale first. Let’s see how it performed.
There’s still a shortage of proper Mysql proxy software. At the moment, there are 2 the most prominent: Mysqlproxy by Oracle and MaxScale by MariaDB. Seeing that there are no RPMs for Mysqlproxy, I decided to try out MaxScale first. Let’s see how it performed.
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
If you have an autoscaling app on EC2, you need an ELB to distribute traffic. And if you don’t trust in ELB to be HA, you need at least 2 of them. The issue is that ELBs don’t have statis IPs, they can only be referenced with CNAME. That limits your DNS hosting option to just Route53, because apex record can’t be CN...
Centos 7 has Exim 4.84 in repos, which has DKIM support built-in. So no need for OpenDKIM anymore. See how is it configured:
Centos 7 has Exim 4.84 in repos, which has DKIM support built-in. So no need for OpenDKIM anymore. See how is it configured:
Centos 7 has Exim 4.84 in repos, which has DKIM support built-in. So no need for OpenDKIM anymore. See how is it configured:
Ansible playbook execution may take quite a while when connection is not configured properly. Here’s a checklist to ensure your Ansible is as fast as possible:
Ansible playbook execution may take quite a while when connection is not configured properly. Here’s a checklist to ensure your Ansible is as fast as possible:
Email server behind NAT is a pain, but it can be further aggravated if your email server has a dynamic IP address. Which is the case with EC2. Granted, it will only change on stop/start of the instance, but still. Here’s a recipe to deal with it (a kludge, of course):
Stages of having forgotten KeePassX master password:
Stages of having forgotten KeePassX master password:
Stages of having forgotten KeePassX master password:
Stages of having forgotten KeePassX master password:
One can say many bad things about Mac OS, but what they got right for sure is typing diacritics, such as ñ or é. You don’t have to add layouts or switch languages, just use alt+n to get dead tilde and alt-e for dead acute accent.
This took a few days of trying…
Proper async thread termination:
Say you need to make a navigation menu bar for a large static (HTML) website. Not the Jekyll/Hugo kind - those are easy to manage. I’m talking about something from the past, a legacy monster.
Say you need to make a navigation menu bar for a large static (HTML) website. Not the Jekyll/Hugo kind - those are easy to manage. I’m talking about something from the past, a legacy monster.
Reusing parts of another grammar
Reusing parts of another grammar
Reusing parts of another grammar
TL;DR: use Gitlab+Netlify. With the push for back to static, I found myself looking for static hosting again. And with some specific requirements: DNS on Cloudflare SSL support for 4th level subdomains (sub.sub.domain.com). Which means SSL termination can’t happen on Cloudflare - their free plan only allows to ...
TL;DR: use Gitlab+Netlify. With the push for back to static, I found myself looking for static hosting again. And with some specific requirements: DNS on Cloudflare SSL support for 4th level subdomains (sub.sub.domain.com). Which means SSL termination can’t happen on Cloudflare - their free plan only allows to ...
TL;DR: use Gitlab+Netlify. With the push for back to static, I found myself looking for static hosting again. And with some specific requirements: DNS on Cloudflare SSL support for 4th level subdomains (sub.sub.domain.com). Which means SSL termination can’t happen on Cloudflare - their free plan only allows to ...
TL;DR: use Gitlab+Netlify. With the push for back to static, I found myself looking for static hosting again. And with some specific requirements: DNS on Cloudflare SSL support for 4th level subdomains (sub.sub.domain.com). Which means SSL termination can’t happen on Cloudflare - their free plan only allows to ...
TL;DR: use Gitlab+Netlify. With the push for back to static, I found myself looking for static hosting again. And with some specific requirements: DNS on Cloudflare SSL support for 4th level subdomains (sub.sub.domain.com). Which means SSL termination can’t happen on Cloudflare - their free plan only allows to ...
So you wrote a piece of software. And you want to open its source. And being a good lad, caring about software freedom, you choose (probably the most well-known) open source license, GPL.
So you wrote a piece of software. And you want to open its source. And being a good lad, caring about software freedom, you choose (probably the most well-known) open source license, GPL.
So you wrote a piece of software. And you want to open its source. And being a good lad, caring about software freedom, you choose (probably the most well-known) open source license, GPL.
So I needed to display a file if it exists. A quick search yielded two options:
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
Greetings, fellow netizen. Today we’re going to install Ubuntu on Redmibook 16 Ryzen edition (Ryzen 4700U).
The dreaded GPU hang error:
The dreaded GPU hang error:
Oh, no! Terraform deploys Lambda again!
Oh, no! Terraform deploys Lambda again!
Environment: AWS EKS, Ingress-Nginx controller installed, and an Ingress resource is configured, passing requests to a backend http service.
Environment: AWS EKS, Ingress-Nginx controller installed, and an Ingress resource is configured, passing requests to a backend http service.
Environment: AWS EKS, Ingress-Nginx controller installed, and an Ingress resource is configured, passing requests to a backend http service.
Let’s say we need to set up HTTP to HTTPS redirection in Traefik ingress.
Let’s say we need to set up HTTP to HTTPS redirection in Traefik ingress.
Let’s say we need to set up HTTP to HTTPS redirection in Traefik ingress.
Today we are going to install Karpenter with ArgoCD.
Today we are going to install Karpenter with ArgoCD.
Today we are going to install Karpenter with ArgoCD.